Wait a till jan/feb for the 7xxx series to be release. Then you can decided to get the new cards that have come out or you could probably pick up the high end 69xx cards for a lot better price. You had the cards for 3-4 years what is another 3-4 months =D.

Yea you have waited for 3 or 4 years just wait a few more months and see what to do then.